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    • 89. 发明申请
    • VEHICLE SLIP CONTROL SYSTEM AND METHOD
    • 车辆滑动控制系统及方法
    • WO2005012026A1
    • 2005-02-10
    • PCT/JP2004/011184
    • 2004-07-26
    • TOYOTA JIDOSHA KABUSHIKI KAISHAHOMMI, Akira
    • HOMMI, Akira
    • B60K28/16
    • B60K6/365B60K6/445B60K6/448B60K6/48B60K28/16B60K2006/262B60L3/102B60L2210/10B60L2220/52B60L2240/423B60L2240/461B60L2240/465B60W10/08B60W2520/28B60W2540/10B60W2710/083Y02T10/6221Y02T10/6239Y02T10/6243Y02T10/641Y02T10/642Y02T10/7216
    • A vehicle is equipped with a motor that receives a supply of electric power, which is output from a battery and is boosted up by a DC/DC converter circuit, via an inverter circuit and outputs a torque to a drive shaft. In response to an estimated variation in road surface condition based on a decrease in angular acceleration of the drive shaft to be less than a threshold value ref during a slip, the control procedure of the invention adds a predetermined value to a torque upper limit Tmax, which is set at the time of the occurrence of the slip, and thereby updates the torque upper limit Tmax to start cancellation of torque restriction. The control procedure then updates the torque upper limit Tmax by a slope of a small time change to restrain the degree of cancellation of the torque restriction. After elapse of a preset time period specified as a waiting time to stabilize the voltage-increasing operation of the DC/DC converter circuit, the control procedure updates the torque upper limit Tmax by a slope of a greater time change to promptly cancel out the torque restriction.
    • 车辆配备有通过逆变器电路接收从电池输出并由DC / DC转换器电路升压的电力供应的电动机,并将扭矩输出到驱动轴。 响应于基于在滑动期间驱动轴的角加速度的减小到小于阈值ref的路面状况的估计变化,本发明的控制过程将预定值加到转矩上限Tmax, 这是在发生滑差时设定的,从而更新转矩上限Tmax以开始扭矩限制的取消。 然后,控制程序将扭矩上限Tmax更新一个小时间变化的斜率,以限制转矩限制的消除程度。 在经过指定为等待时间的预设时间段以稳定DC / DC转换器电路的增压操作之后,控制过程将扭矩上限Tmax更新一个较大时间变化的斜率,以迅速抵消转矩 限制。